Epson EB-G5950 User Manual page 44

Limitation of the Number of the Target Projectors when Using Multiple Projectors
44
The remote control ID setting is saved in the remote control. Even if
q
the remote control batteries are removed to replace them and so on,
the stored ID setting is retained. However, if the batteries are left out
for a long time, it is reset to the default value (ID0).